Original passage below, taken from: Wade, Peter. Race and Ethnicity in Latin America. London and Chicago: Pluto Press, 1997 But it is no coincidence that just as abolitionist opinion gained dominance in Europe, making the institutionalized inferiority of blacks morally insecure, theories [claiming to be 'scientific'] began to emerge that could justify the continued dominance over blacks (not to mention Native Americans, Asians and Orientals) in terms of supposedly innate and permanent inferiority and now with the full power of scientific backing (Wade, 1997: 11). As Peter Wade argues, oppression of non-whites was maintained, even when the rise of abolitionist ideas in Europe made the institutionalized inferiority of blacks morally insecure, by the spread of racist ideology posing as scientific theories (Wade, 1997: 11).
Is this plagiarism?
1) True
2) False

As we can see in the text presented in the question above, the author showed the bibliographic reference where he removed the information he wished to present. He also did this when he made a quote to the author of the original text. In this case, we can state that the author of the text presented, gave due credit to the author who originally presented this information, issuing the correct bibliographic reference. In that case, there was no plagiarism.